body {
  min-width: 320px;
  max-width: 750px;
  background-color: #fff;
  margin: 0 auto;
}
a {
  text-decoration: none;
  color: #707070;
}
ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
i {
  font-style: normal;
}
@media screen and (min-width: 750px) {
  html {
    font-size: 37.5px !important;
  }
}
td {
  display: inline-block;
  width: auto;
}
.fill {
  width: 19rem;
  min-height: 100vh;
  margin: 0.5rem;
}
span {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1rem;
  font-family: PingFangSC-Medium, PingFang SC;
}
.in {
  width: 12rem;
  height: 1rem;
  font-size: 1rem;
  border: 0;
  outline: 0;
  text-align: right;
}
.la {
  font-size: 1rem;
  margin-right: 0.4rem;
}
i {
  color: red;
}
label {
  font-size: 1rem;
}
.k {
  height: 1rem;
  width: 100%;
  background-color: red;
}
